On 17/01/08 23:52 +0100, Arnd Hannemann wrote: <snip>
> > Hmmm - not sure whats happening here. I wonder if we're stuck in an > > interrupt storm of some sort as soon as you register the interrupt handler. > > But I would think that whatever was causing the interrupt storm would be > > running well before we hit setup_irq(), and you would be recording "nobody > > cared" interrupts left and right. > > Interesting thing is that it hangs not in setup_irq() but later, right > after printing the newline of the printk. THat makes me think interrupt storm even more. > > The thing that scares me is that the TinyBIOS seems to know that we want > > to use the MFGPT timers, and I wonder if they did anything behind the scenes > > to "help us out" even though we didn't ask for it. > > > > I don't know how easy it would be for you - but can you try reading > > MSRs 0x51400020 - 0x51400023? If you need a command line app to do it, > > you can use rdmsr from here: > > > > http://wiki.laptop.org/go/Flashing_LinuxBIOS_on_A-Test_Boards > > MSR register 0x51400020 => b7:ef:5f:f4:bf:d1:95:68 > MSR register 0x51400021 => b7:fd:1f:f4:bf:cf:5a:d8 > MSR register 0x51400022 => b7:f3:bf:f4:bf:f5:fb:a8 > MSR register 0x51400023 => b7:fb:9f:f4:bf:fd:d9:f8 Hmmm - those look wrong. Is /dev/cpu/0/msr there? The applet on the wiki has a bug that doesn't check for it. Jordan -- Jordan Crouse Systems Software Development Engineer Advanced Micro Devices, Inc. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
